Heat recovery unit

UTNR-A Platinum 040÷500

Air flow rate: 400÷4.050 m³/h

WEBCODE: UTNR3

Product benefits

  • Complying with ErP 2018 NRVU
  • Very high efficiency heat recovery Eurovent Certificate
  • Multi-speed or Brushless EC fans
  • F7 and M5 high efficiency filters
  • Double sandwich wall with high insulation capacity
  • Full control kit
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Fresh air terminal unit with counterflow opposing flow static heat recovery.



Construction features

• Recovery unit: very high yield static type with aluminium plates with counterflow with close step. Side extraction of exchange pack (except for size 40 which is extracted from the bottom).
• Fans: fresh air inlet and forward blade double intake centrifugal expulsion type with a continuously adjustable directly coupled electric motor; optionally, EC Brushless technology high efficiency electric motors. Fan unit installed on anti-vibration mountings to prevent the transmission of vibration to the structure. The EC fans can be factory set for operation with constant flow (specification to be provided in order)
• Structure: frame made with extruded aluminium profile with preloaded nylon joints. Sandwich buffer panels, 23 mm thick, made with galvanised sheet steel on the inside and pre-painted on the outside with thermal and acoustic insulation made of injected polyurethane, with a density of 45 kg/m3.
• Filtering section: filtration sections made of compact cell filters with low pressure drop polypropylene media, removable from the side, with F7 efficiency class in fresh flow and M5 in expulsion flow.
• Factory-installed dirty filter differential pressure switches
• Condensate drain pan made of galvanised sheet steel with condensate drain connection from the bottom.
• Integrated free cooling or thawing by-pass system. Thanks to the presence of a motorised damper next to the heat recovery, a bypass system can be created to manage freecooling or thawing depending on thermohygrometric needs or conventions


Versions

• UTNR-A/O PLATINUM - Recovery unit with opposing flow heat exchanger, installed horizontally and with standard multi-speed fans
• UTNRE-A/O PLATINUM - Recovery unit with opposing flow heat exchanger, installed horizontally and with Brushless EC fans that reduce power consumption for ventilation at equal performance.

Available orientation
• 01 - Right-hand connections
• 02 - Left-hand connections
The selected orientation must be specified to process the job order.

Installation
• EXT- Outdoor installation including rain cover, 80 mm-high base and an outdoor electrical box


Factory fitted accessories

• BER - Reheating electrical resistance installed inside, complete with filament-type safety thermostats and control relays to contain pressure drops.
230/1/50 single-phase electrical supply for model 040. 400/3/50 three-phase for models 075÷500.
• BA - Internal hot water reheating coil.
• BAATG - Antifreeze thermostat installed downstream of the water reheating coil.
• BP - Bypass control for free-cooling (suitable for PCU and KPCUE) including damper actuator and 2 NTC probes on board the machine.
• ERF7-F7 efficiency return filter


Separately supplied accessories

• KSBFR - Section containing hot/cold water coil to reheat or recool, placed outside the machine in front of the inlet. Includes stainless steel condensate drain pan with drain connection from the bottom.
• KSBFR + ATG - Hot/cold water coil section with mounted antifreeze thermostat.
• KSRE - Regulation damper set up for servo-control, consisting of a galvanised sheet steel frame with adjustable fins.
• KSSC - Duct silencer with a rectangular base made of glass wool covered with a protective film of glass fibre and micro-stretched sheet steel.
• KRMS - Section with 3 dampers for air mixing and recirculating (only for horizontal installation).
• KSPC - Panel with round fittings.


Controls

• KCV2 - Speed selector for wall mounting installation, to select from 3 speeds: Off/heating/cooling switch; 3-speed switch; 230V power supply.
• PCU-KPCUE - Control panel for wall mounting installation, allows the winter/summer room temperature to be controlled, gives consent to activate or exclude the water coil or the electrical resistance. Selects the operating speed of the fan from minimum, medium, maximum (excluding model 40 which only offers one speed) or by 0/10 V regulation (KPCUE for EC fans) and controls the free-cooling function.
• KPTZ - Rotating potentiometer for wall mounting installation, dedicated to manual fan speed control. The speed of delivery and return fans is calibrated with a single potentiometer (only for the EC Brushless fan version).

Full Controls
• KRFCS - Electrical panel complete with: DDC programmable microprocessor regulator. BMS interfacing Integrated as standard with Modbus RTU protocol, main disconnecting switch, relay to control various users, terminal blocks for quick connection of all machine components, auxiliary circuit supply with suitable transformer 230/12-24V.

USER PANELS (for KRFCS)
• KHMIG -Interface terminal with black monochrome graphic display with LED backlighting.
• KHMIR - Interface terminal complete with integrated room temperature probe with black monochrome graphic display with LED backlighting.
• KTOUCH - Black and white touch screen control panel.
• KCOLOR - Colour touch screen control panel.
• KCW - White decorative plate for control panel.
• KCB - Black decorative plate for control panel.
• KWMS - Wall mounting installation support for control panel.


Valves and actuators
• KV3V - PN40 Mixer/diverter 3-way regulation ball valves, female threaded hydraulic connections.
• KV2V - PN40 2-way regulation ball valves, female threaded hydraulic connections.
• KVMM - Actuator for ball regulation valves with modulating control 0/10 Vdc 24 Vac power supply.
• KV0M - Actuator for 230V On/Off valves.
• KDMA-S - Actuator for modulating damper 0-10V 24V with spring return.
• KDMA - Actuator for modulating damper 0-10V 24V without spring return.
• KDOA - Actuator for ON/OFF damper with spring return.
All the probes, actuators and valves on the Full Control section are also available.


UTNR-A PLATINUM MODEL
Type of Unit
Outdoor air filters
Return air filters
Bypass
TECHNICAL SPECIFICATIONS
Nominal air flow m³/h
STANDARD FANS
Nominal available static pressure Pa
Specific fan power (SFP) W/(m3/s)
Sound pressure level dB(A)
Speed N°/Regulation Type
Electrical supply V-ph-Hz
BRUSHLESS EC FANS
Nominal available static pressure Pa
Max available static pressure Pa
Specific fan power (SFP) W/(m3/s)
Sound pressure level dB(A)
Speed N°/Regulation Type
Electrical supply V-ph-Hz
COUNTERFLOW HEAT RECOVERY
Winter Efficiency %
Summer Efficiency %
Efficiency Regulation EC 1253/2014 %
DIMENSIONS AND WEIGHTS
Length/Height/Depth UTNR-A PLATINUM mm
Weight UTNR-A/P O kg
40 75 100 150 200 320 400 500
Non-residential- Bidirectional
F7
M5
Motorisable side bypass damper
400 750 1000 1500 2050 3200 3800 4700
160 120 130 160 120 180 n.d. n.d.
740 934 1105 1102 1078 1054 n.d. n.d.
59 60 63 63 63 69 n.d. n.d.
4 3 3 3 3 3 n.d. n.d.
230-1-50 230-1-50 230-1-50 230-1-50 230-1-50 230-1-50 n.d. n.d.
160 120 130 160 120 180 200 200
340 210 520 500 540 375 940 760
705 742 1059 1048 898 1040 949 935
60 61 62 64 62 68 70 73
0-10 V
230-1-50 230-1-50 230-1-50 230-1-50 230-1-50 230-1-50 230-1-50 230-1-50
83,6 82,9 81,6 83,3 83,7 86,8 84,1 84,2
75,5 75,9 74,5 75,1 75,6 78,0 75,0 75,1
75,9 76,4 75,0 75,6 76,0 76,3 75,5 75,6
40 75 100 150 200 320 400 500
1480/380/800 1940/480/990 1940/480/990 2200/550/1000 2200/550/1400 2500/680/1400 2500/680/1400 2500/680/1700
90 140 150 170 200 240 250 280

Data at the following conditions:

Values referred to the nominal air flow considering the pressure drops of the heat recovery and the F7 filter

Values referred to the nominal air flow and Nominal available static pressure

Sound pressure level referring to 1 m from the machine inlet in free field

Outdoor air T: -5°C, 80% RH ; Ambient air T: 20°C, 50% RH.

Outdoor air T: 32°C, 50% RH ; Amb. air T: 26°C, 50% RH.

Dry nominal conditions, measured according to En 308 in balanced flows. Outdoor air 5°C D.B.; Ambient air 25°C D.B.